Agents initially located 102 migrants in a desert area near the Lukeville border crossing near State Route 85, according to U.S. Customs and Border Protection.

Around an hour later, a group of 91 undocumented immigrants were discovered in the same area, officials said.

The groups were comprised of adults and children, some as young as 1 year old.

The majority of the undocumented immigrants were from Honduras, El Salvador and Guatemala, said authorities. Most people were traveling as families and groups, but 11 children were unaccompanied, officials said.

After medically evaluating the 193 people, the agents took them into custody and transported them to the Ajo Border Patrol Station, where they were processed for immigration violations, according to a U.S. Customs and Border Protection news release.

Since Aug. 17, 587 people have been arrested and processed for illegally crossing the Arizona border who were traveling in a group of more than 100 people, according to the agency. Most recently, a group of 163 undocumented immigrants was arrested on Sept. 1.

Two smaller groups were found earlier in the summer.

Large groups of undocumented immigrants crossing the border near the West Desert has been trending for months.(Photo: U.S. Customs and Border Protection)